Dorman 300-396 Engine Water Pump Pulley

Engine Water Pump Pulley Replacement

Dorman 300-396 is a steel engine water pump pulley made as a direct replacement for the original part on select BMW applications. It restores proper belt drive operation for BMW Z3, 323i, 328i, M3, 528i, 320i, 325i, 325is, and 525i models across the listed years.

This Dorman water pump pulley, part number 300-396, uses a bolt-on attachment and a serpentine pulley design for vehicles equipped with a serpentine belt system. It is built as a regular-grade replacement component for OE-style fitment on the specified BMW applications.

Key Features

• Steel construction for durable belt-drive service
• Bolt-on attachment type for direct replacement installation
• Serpentine pulley and serpentine belt compatibility
• Regular-grade replacement for select BMW cooling system applications
• Package contents: pulley
• Direct replacement for OE part number 11511722567

Detailed Description

When the engine water pump pulley is worn, bent, or damaged, belt tracking and accessory drive performance can suffer. Dorman 300-396 is engineered as a direct replacement pulley for specific BMW models, helping restore the original belt path and proper water pump drive function. It is a steel, bolt-on serpentine pulley designed for use on the listed BMW 320i, 325i, 325is, 525i, 323i, 328i, M3, 528i, and Z3 applications.

This part cross-references OE number 11511722567 for the same application. For shoppers searching for a BMW water pump pulley replacement, BMW serpentine pulley, or Dorman 300-396 for BMW Z3 and M3 cooling system repair, this part matches the confirmed fitment shown below.

What It Helps Fix

• Wobbling or damaged water pump pulley
• Belt noise caused by pulley wear or misalignment
• Serpentine belt tracking issues
• Loss of proper water pump drive performance
• Cooling system service needs tied to pulley replacement

Installation Notes and Tips

Verify the vehicle year, make, and model against the fitment list before installation. This pulley uses a bolt-on attachment and is intended for serpentine belt applications, so confirm belt routing and pulley alignment during service. Inspect the water pump, belt, and related drive components at the same time to avoid repeat repairs.

• Fits 1997-2002 BMW Z3, N/A
• Fits 1998-1999 BMW 323i, N/A
• Fits 1996-1999 BMW 328i, N/A
• Fits 1994-1999 BMW M3, N/A
• Fits 1997-1998 BMW 528i, N/A
• Fits 1992-1995 BMW 320i, N/A
• Fits 1992-1995 BMW 325i, N/A
• Fits 1992-1995 BMW 325is, N/A
• Fits 1991-1995 BMW 525i, N/A

Quality Assurance

Dorman supplies direct-replacement automotive parts engineered to match the original application requirements for the listed vehicles. Part number 300-396 is built to replace the OE pulley on the confirmed BMW fitments above.